WRENCH - SPARK PLUG

PART NO. 161718

An extra long-bodied 13/16" hex for use on
OMC opposed twin engines.

PART NO. 375632

Standard length 13/16" hex for use on 1974
OMC alternate firing twin engines.

PART NO. 291030

A minimum length 11/16" hex for use on OMC
R.C. engines.